Claims
- 1. A seat carrier for a chair comprising:
- a base part;
- a seat platform carrier;
- downward flaps located at opposite ends of said seat platform carrier;
- said downward flaps at least partially overlapping side walls of said base part;
- connecting means for pivotably connecting said seat platform carrier to said base part;
- said connecting means including a pin horizontally transversing said base part located a prscribed distance from a front end and a back end of said base part;
- said pin extending through said flaps and said side walls;
- said prescribed distance being at least 1/4 of a length of said seat platform carrier;
- said connecting means permitting said seat platform carrier to tilt forward and backwards about said pin relative to said base part;
- resetting, means for returning said seat platform carrier from a tilting position, when a load is applied to said seat platform carrier, to an original initial position when said load is removed;
- a retaining pin extending substantially parallel to said pin;
- said retaining pin attached at each end to said downward flaps;
- an aligning pawl extending diagonally in said base part attached at one end to said retaining pin;
- a compression spring attached at one end to said base part; and
- said compression spring attached at the other end to an end opposite said one end attached to said retaining pin, such that when said load is applied to said seat platform carrier, said compression spring provides a resilient force through said aligning pawl to said seat platform carrier.
- 2. A seat carrier for a chair according to claim 1, further comprising:
- an aligning link formed as a notch in said aligning pawl;
- said notch positioned opposite to a position where said compression spring provides a resilient force to said aligning pawl;
- a link pin attached to said base part; and
- said link pin fitting into said notch when said seat platform carrier is in its initial, load-free position.
- 3. A seat carrier for a chair according to claim 1, further comprising:
- a lamellar pack pivotably attached at one end to said retaining pin;
- said lamellar pack having oblong holes at the other end;
- a clamping pin mounted between said side walls of said base part; and
- said clamping pin positioned through said oblong holes such that said lamellar pack is permitted to slide on said clamping pin, thereby providing a relative tilting motion between said seat platform carrier and said base part.
- 4. A seat carrier for a chair according to claim 3, further comprising:
- a clamping means for locking said lamellar pack, thereby restricting said relative tilting motion; and
- a first hand lever extending outside said base part providing external activation and deactivation of said clamping means.
- 5. A seat carrier for a chair according to claim 1, further comprising:
- height adjusting means for adjusting a vertical position of said seat carrier relative to a base of said chair; and
- a second hand lever extending outside said base part providing external activation and deactivation of said height adjusting means.
- 6. A seat carrier for a chair according to claim 5, wherein:
- said height adjusting means includes an actuator lever pivotably mounted on said pin; and
- said second hand lever attached to said actuator lever, whereby a user is capable of selecting an appropriate seat height.
- 7. A seat carrier for a chair comprising:
- a base part;
- a seat platform carrier;
- a pin horizontally transversing said base part located a prescribed length from a front end and a back end of said base part;
- said prescribed distance being at least 1/4 of a length of said seat platform carrier;
- said pin permitting said seat platform carrier to tilt forward and backwards relative to said base part;
- downward flaps located at opposite ends of said seat platform carrier partially overlapping side walls of said base part;
- said pin extending through said flaps and said side walls;
- a retaining pin extending substantially parallel to said pin attached at each end to said downward flaps;
- an aligning pawl extending diagonally in said base part attached at one end to said retaining pin; and
- a compression spring attached at one end to said base part and at the other end to the other end of said aligning pawl such that when a load is applied to said seat platform carrier, said compression spring provides a resilient force through said aligning pawl to said seat platform carrier.
- 8. A seat carrier for a chair according to claim 7, further comprising:
- an aligning link formed as a notch in said aligning pawl;
- said notch positioned opposite to a position where said compression spring provides a resilient force to said aligning pawl;
- a link pin attached to said base part; and
- said link pin fitting into said notch when said seat platform carrier is in its initial, load-free position.
- 9. A seat carrier for a chair according to claim 7, further comprising:
- a lamellar pack pivotably attached at one end to said retaining pin;
- said lamellar pack having oblong holes at the other end;
- a clamping pin mounted between said side walls of said base part; and
- said clamping pin positioned through said oblong holes such that said lamellar pack is permitted to slide on said clamping pin, thereby providing a relative tilting motion between said seat platform carrier and said base part.
- 10. A seat carrier for a chair according to claim 9, further comprising:
- a clamping means for locking said lamellar pack, thereby restricting said relative tilting motion; and
- a first hand lever extending outside said base part providing external activation and deactivation of said clamping means.
- 11. A seat carrier for a chair according to claim 7, further comprising:
- height adjusting means for adjusting a vertical position of said seat carrier relative to a base of said chair; and
- a second hand lever extending outside said base part providing external activation and deactivation of said height adjusting means.
- 12. A seat carrier for a chair according to claim 11, wherein:
- said height adjusting means includes an actuator lever pivotably mounted on said pin; and
- said second hand lever attached to said actuator lever, whereby a user is capable of selecting an appropriate seat height.
Priority Claims (1)
Number |
Date |
Country |
Kind |
297 17 571 |
Oct 1997 |
DEX |
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Parent Case Info
This application is a continuation of PCT/DE98/02889 filed Sep. 30, 1998, published as WO/99/17637 on Apr. 15, 1999.
US Referenced Citations (5)
Foreign Referenced Citations (6)
Number |
Date |
Country |
0045925 |
Aug 1981 |
EPX |
0198056 |
May 1986 |
EPX |
1010628 |
Mar 1952 |
FRX |
2147072 |
Apr 1973 |
DEX |
2167947 |
Jun 1986 |
GBX |
9722283 |
Jun 1997 |
WOX |
Continuations (1)
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Number |
Date |
Country |
Parent |
PCTDE9802889 |
Sep 1998 |
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